Как программно изменить LangDriver для таблиц dBase и Paradox

.......
var List:TStrings;
.......
BEGIN
.......
List.Add ( 'LANGDRIVER=db866ru0 ');
.......
Session.ModifyDriver( 'DBASE', List );
.......
END;

uses DbiTypes, DbiProcs, DbiErrs, DB, WinProcs, SysUtils;

procedure ChangeLangDriver(DatabaseName, TableName, LDName: string);
var
  TblExt: string;
  Database: TDatabase;
  TblDesc: CRTblDesc;
  OptDesc: FLDDesc;
  OptData: array[0..250] of Char;
  Cur: hDBICur;
  Rec: CFGDesc;
begin
  if (TableName = '') or (LDName = '') then
    raise Exception.Create('Unknown TableName or LDName');
  Database := Session.OpenDatabase(DatabaseName);
  try
    if Database.IsSQLBased then
      raise Exception.Create(
        'Function ChangeLangDriver working only with dBase or Paradox tables');
    FillChar(OptDesc, SizeOf(OptDesc), #0);
    FillChar(TblDesc, SizeOf(TblDesc), #0);
    StrCopy(OptDesc.szName, 'LANGDRIVER');
    OptDesc.iLen := Length(LDName) + 1;
    with TblDesc do
    begin
      StrPCopy(szTblName, TableName);
      TblExt := UpperCase(ExtractFileExt(TableName));
      if TblExt = 'DBF' then
        StrCopy(szTblType, szDbase)
      else if TblExt = '.DB' then
        StrCopy(szTblType, szParadox)
      else
      begin
        AnsiToOEM(StrPCopy(OptData, DatabaseName), OptData);
        if DbiOpenCfgInfoList(nil, dbiREADONLY, cfgPersistent,
          StrPCopy(OptData, '\DATABASES\' + StrPas(OptData) + '\DB INFO\')
          Cur) <> DBIERR_NONE then
          raise Exception.Create('Unknown table type');
        try
          while DbiGetNextRecord(Cur, dbiNOLOCK, @Rec, nil) <> DBIERR_EOF do
            if StrComp(Rec.szNodeName, 'DEFAULT DRIVER') = 0 then
            begin
              StrCopy(szTblType, Rec.szValue);
              Break;
            end;
        finally
          Check(DbiCloseCursor(Cur));
        end;
      end;
      iOptParams := 1;
      pfldOptParams := @OptDesc;
      pOptData := @OptData;
    end;
    StrPCopy(OptData, LDName);
    Check(DbiDoRestructure(Database.Handle, 1, @TblDesc, nil,
      nil, nil, False));
  finally
    Session.CloseDatabase(Database);
  end;
end;

ChangeLangDriver( 'DBDEMOS', 'EMPLOYEE', 'ancyrr' );
ChangeLangDriver( 'DBDEMOS', 'EMPLOYEE.DB', 'ancyrr' );
ChangeLangDriver( 'C:\DELPHI\DEMOS\DATA', 'CLIENTS.DBF', 'db866ru0' );